Test that we can have equation blocks with close to the maximum
number of NL instructions per block, and that we can do this
for two blocks at once.
This puts the total count over the per-block limit, which should not
cause any problems.
If the limits in GAMS/Base are changed, change maxInsPerBlock below.
Could we get maxInsPerBlock from GAMS/Base?
Limit for non-linear instruction code is now 2147483k. It is the same for the
block. We can not test it on all out machines because of memory limitations.
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